When modifier(s) held for column/row selection, draw a bar around the column/row that follows mouse hover position

[Robert Leach]

I had an idea to make column/row selection more intuitive:

When hovering over the matrix and a modifier keys is held (currently it's shift for rows and control for columns, though I'd like to suggest reserving control for contextual menus), draw a horizontal or vertical bar/band that follows the mouse until a click happens.

I think that this would help people to know what would happen if they clicked.

Note that this issue should be implemented in a way that is consistent with the holistic modifier plan & cheat-sheet in issue #70.

[Robert Leach]

Note that this issue should be implemented in a way that is consistent with the holistic modifier plan & cheat-sheet in issue #70.

[Robert Leach]

This resolves issue #245. When the shift/control keys are held during hover over the matrix, the hovered row/column is highlighted.

This helps people to understand what would be selected if they were to click. It could also help act as a guide to associate data that is far apart as being on the same column or row.

→ <<cset e8810aa615b7>>

[Robert Leach]

This resolves issue #245. When the shift/control keys are held during hover over the matrix, the hovered row/column is highlighted.

This helps people to understand what would be selected if they were to click. It could also help act as a guide to associate data that is far apart as being on the same column or row.

→ <<cset e8810aa615b7>>

[Robert Leach]

Removing milestone: Selecting Data (automated comment)